I love that site, I plan on joining the MRHS soon. I am more of a diesel person, but those are some nice steamers! I really like those 2-8-0s. Someday I would like to have one of every steam and diesel loco the D&IR, DM&N, and DM&IR ever owned along with an ore car correct for the time period to accompany it, I think I can smell some scratchbuilding ahead, that can mean:mrgreenrwall1. But only time will tell.
Here's the diesel version.....
DMIR Diesel Locomotives
And unless you have a small fortune for brass locos you are most certainly looking at some serious kit bashing.It can be done though,I came across a site where a guy has done several DM&IR locos that way.I'll look for it and post it in your thread.
Chris